jet kit for exhaust?

[insaneracin2003]

i have a 01 400ex stock,i am looking for an exhaust and jet kit combo,if there is one,i am looking at getting the LRD PRO-4 exhaust or something like that.
what jets can i use and also i will be getting the motor worked to a 416 in early next year.would i have to purchase new exhaust???? thanks for the input

[zephead400ex]

Doubt you will find an exhaust/jet kit combo. When you have motor work done you will not need to get a new exhaust:eek2: LRD is a good pipe, looks sick too! When you get your motor work done, you will have to rejet then also.